Whistle



G. F'. HALL.'l

WHISTLE.

APPLICATION FILED NOV. 4. 19I8.

Patented Jan. 6, 1920.

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.a its .edges the UNITED sTATEs PATENT oEEroE.

GEORGE F. I-IALL7 0F NEWARK, NEW JERSEY, ASSIGNOR TO' EMANUEL W. KAISER,0F

' lNEWARK, NEW JERSEY.

WHISTLE.

Specication of Letters Patent.

Patented Jain'. 6,1920.

Application led November 4, 1918. Serial No. 260,965.

citizen of the United States, and a resident of Newark, in the county ofEssex and State of New Jersey, have invented new and useful Improvementsin Whistles, of which the following is a specification.

This invention relates to whistles adapted to be usedy as signals uponautomobiles, motor boats and so forth, and operated by the compressedgases of the gas engines thereof, as for instance in connection with oneof the cylinders of the engine. More particularly, the invention relatesto chime whistles of such a type.

The objects of the invention are to secure an improved whistle of simpleand inexpensive construction; to obtain a clear tone, and enable thesame to be varied as desired; to provide for these purposes a chimewhistlc; to secure adjusting means accessible from the outside andeasily opera-ted; to provide an extensive surface against which to clampthe set screw; to hold the parts against relative movement by the actionof opposing screws; to prevent carbon from affecting the whistle orchanging its tone; to enable the whistle to be readily applied to anyengine, and to be quickly and easily taken apart and put together, andto obtain other advantages and results as may be brought out in thefollowing description.

Referring to the accompanying drawing, in which like numerals ofreference indicate the same parts throughout the several views,

Figure 1 is a side view of a whistle embodying my invention applied to agas engine cylinder, the latter being in section and partly broken away;

Fig. 2 is a central longitudinal section of the whistle and itsconnections;

Fig. 3 is a perspective view of the central pipe-forming member;

Fig. L1 is a perspective view of the base member of the whistle, and

Fig. 5 is a perspective view of the air distributing disk.

In the specific embodiment of the invention shown in said drawing, 1indicates the base piece of the whistle, cup-shaped and adapted toreceive through its neck 2 a blast of air to blow the whistle. '1n themouth of the cup-like base is an air-distributing disk 3 which closelyapproaches ,walls of the :chamber a of the base piece and Vprovidesthereat an annular space for the air to pass through. This disk 3 isshown mounted upon the end of a tubular extension 5 of the neck of thebase piece, which extends centrally through the chamber of the basepiece and terminates substantially flush with the mouth thereof, its endbeing preferably reduced as at 6 to enter a hole 7 in the center of thedistributing disk 3 and form a seat 8 therefor. The sides of thistubular extension 5 are apertured as at 9, within the chamber 4L, so asto provide for the passage of air to the annular aperture around thedistributing disk 3, and the end of it which re-v ceivesv saiddistributing disk is interiorly threaded to receive the threaded stem 10of a pipe-forming member 11 which stem thus clamps the distributing diskreleasably in place. l

This pipe-forming member! 11 I- have shown as providing three radialwebs or partitions 12 whose outeredges fit against the inner wall of atubular body portion 13, said body portion being shown as cylindricaland of a diameter substantially equal to that of the base 1. The bodyportion is open at its end next the base, and its end edge lies,opposite the edge of the mouth of the base, but spaced therefrom, asshown. The pipes formed by the body portion 12 and pipe-forming member11 are closed, preferably different distances from the end of the bodyportion neXt the base, by transverse walls 14, 15 and 16, one of theseas 14: being shown at the eXtreme end of the pipe-forming member and theothers nearer the base of the whistle, so as to give dierent notes.

The outer end of the pipe-forming member 11 has a central threaded stud17, and the outer end of the tubular body portion 13 is closed andprovided with a central hole 18 loosely receiving said stud 17. Asuitably adjustable stop, such as the set screw 19 working through theend wall 2O of the body portion and adapted to engage the e'nd partition11 of the pipe-forming member, enables the tubular body portion to bespaced from the base 1 as desired, to adjust the tone of the whistle,and an ornamental nut 21 on the stud 17, outside the end wall of thebody portion, serves to lock the latter wherever adjusted. It is to benoted that the .set vscrew 19 is thus provided with an extensive surfaceagainst which to bear, so that no particular care has to be exercised tocause the set screw to register with that surface, and there is, also,no tendency for the set screw to slip off of that surface. Furthermore,the screw 19 operates in an opposite direction from the stud and nut, sothat one causes the threads of the other to bind, thus obtaining a firmgripping or binding action to hold the parts against displacement orbecoming loose. The structure furthermore enables the parts to beclamped without use of any tools, since the set screw may first beturned to desired position and the nut 21 on stud 17 then clamped downtight by hand. y

I have shown my im roved whis-tle applied to the priming coc I openingof a gas engine cylinder 22, in Figs. 1 and 2, by means of an elbow 28adapted to connect at one end with said priming opening as by a nipple24 and threaded at its other end to screw. into the neck of the basepiece 1 of the whistle. This elbow 23 has, a valve 25 normally heldclosed by a spring 26 but adapted to be opened against the power of saidspring by a lever 27 mounted in a bracket 28 at the bend of the elbow.Any suitable draft means, such as a wire 29, is

secured to said lever, so that by drawing upon it the valve 25 is openedand the whistle sounded, while at other times the spring 26 holds thevalve -closed and the draft means retracted. Any other suitable meansfor introducing a blast of air, steam, gas or the like to the whistle tosound the `same can be employed, however.

,Having thus described the invention, what I claim is.

In a whistle of the character described, the combination of a basevpiece, an4 air distributing plate providing an air outlet from -the basepiece, a pipe-forming member secured to said base piece and plate andproviding radial webs or partitions neXt the base piece and transversewebs at the other ends of said radial webs, a tubular body portiontelescoping said pipe-forming means, a set screw working through the endof said tubular body portion against the flat surface of the transverseweb of said pipe-forming member farthest from the base piece, and meansfor adjustably clamping the tubular body portion toward the pipeformingmember to engage said set screw with said web.'

GEORGE F. HALL.

